8217679470 has 256 divisors, whose sum is σ = 28039882752. Its totient is φ = 1483407360.

The previous prime is 8217679469. The next prime is 8217679507. The reversal of 8217679470 is 749767128.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 502462 + ... + 518558.

It is an arithmetic number, because the mean of its divisors is an integer number (109530792).

Almost surely, 2^8217679470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8217679470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14019941376).

8217679470 is an abundant number, since it is smaller than the sum of its proper divisors (19822203282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8217679470 is a wasteful number, since it uses less digits than its factorization.

8217679470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16155.

The product of its (nonzero) digits is 1185408, while the sum is 51.

The square root of 8217679470 is about 90651.4173634367. The cubic root of 8217679470 is about 2017.9778697238.

The spelling of 8217679470 in words is "eight billion, two hundred seventeen million, six hundred seventy-nine thousand, four hundred seventy".